Add a settings category about the cursor

www/common/sframe-common-cursor.js

@@ -1,10 +1,15 @@
 define([
-], function () {
+    '/common/common-util.js',
+], function (Util) {
     var module = {};
 
     module.create = function (Common) {
         var exp = {};
         var sframeChan = Common.getSframeChannel();
+        var metadataMgr = Common.getMetadataMgr();
+        var privateData = metadataMgr.getPrivateData();
+        var share = Util.find(privateData, ['settings', 'general', 'cursor', 'share']);
+        var show = Util.find(privateData, ['settings', 'general', 'cursor', 'show']);
 
         var execCommand = function (cmd, data, cb) {
             sframeChan.query('Q_CURSOR_COMMAND', {cmd: cmd, data: data}, function (err, obj) {
@@ -14,6 +19,7 @@ define([
         };
 
         exp.updateCursor = function (obj) {
+            if (share === false) { return; }
             execCommand('UPDATE', obj, function (err) {
                 if (err) { console.error(err); }
             });
@@ -24,6 +30,7 @@ define([
             messageHandlers.push(handler);
         };
         var onMessage = function (data) {
+            if (show === false) { return; }
             messageHandlers.forEach(function (h) {
                 try {
                     h(data);